https://www.selleckchem.com/pr....oducts/ly2157299.htm
Levels of LH, FSH, oestrogen and progesterone hormones were significantly (p less then .05) higher in Receptal-treated groups than in the control group. Hens injected with Receptal had an increase in ovary%, yellow follicles number, oviduct% and oviduct length (p less then .001) compared with the control. It was concluded that treating inactive ovaries in non-laying hens with GnRH injections for two times, 4-day intervals, is an effective procedure for inducing egg production and useful in cost reduction in layer farms, and the group